The RB1203 is a nylon-insulated fork terminal, with flanged tongue, for wire range #18 - #14 AWG. Fork terminals enable easy installation because the mounting screw does not have to be completely removed. Length .74 inches, .28 inches width, maximum insulation .162 inches, bolt hole #6. The terminal is high-conductivity electrolytic copper, electro-tin plated, with color-coded insulation. Recommended tool ERG4001.